First , welcome to the forum Sweetaspie.
I don't think I have ever been asked that question. If I have, I probably chose not to answer, as it was probably asked by a non horse person, so why try to explain?
But, I do have to agree with both SpeedRacer and MLS posts.
BTW, I have a MIL that is not a fan of animals , though she wouldn't intentionally hurt one. She is often making remarks about my horses, either how tasty horse meat is or how much they smell, you get the idea. I just smile and say to each their own. Drives her nuts not to get a rise out of me.
Be the kind of woman that when your feet hit the floor each morning the devil says, "Oh crap, she's up!".